JP2002370565A - Sliding device for vehicular seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To positively regulate sliding of an upper rail when a seat is jumped up. SOLUTION: A slide lock member 31 can move to a lock position of engaging with a lower rail 21 and regulating sliding of the upper rail 22. An operation lever 32 can be operated so as to move the slide lock member 31 between the lock position and an unlock position. A movement lock member 41 can move to an unlock position of releasing engagement with a striker 18 provided on the seat and allowing movement to the upper rail 22 of the seat. An engagement member 42 can move to an engagement release position of releasing engagement with the movement lock member 41 and allowing movement of the movement lock member 41 to the unlocked position, and when it is in the engagement release position, it is positioned on a movement locus of the operation lever 32 and regulates movement of the operation lever 32 to an unlock direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding device for a vehicle seat, and more particularly to a sliding device suitable for use in a flip-up and retractable vehicle seat.

[0002]

2. Description of the Related Art As a second seat of a one-box vehicle, a flip-up storage type vehicle seat as disclosed in, for example, Japanese Patent Application Laid-Open No. 10-315830 is known. The seat is slidably supported by a pair of left and right slide devices, is separable and connectable to one slide device, and is connected to the other slide device so as to be rotatable sideways. Then, when the seat is not used, the seat is slid to a predetermined position, separated from one of the slide devices, and then rotated with respect to the other slide device so that the seat can be flipped up to a position along the side wall of the vehicle cabin. . Both slide devices include a lower rail fixed to the floor, an upper rail slidably engaged with the lower rail and coupled to the seat, and a slide lock device for restricting the slide of the upper rail. Further, the slide device on the side that separates from the sheet is provided with a hook that releasably engages with the seat and a lock that locks the hook in the engaging position so that the seat and the upper rail can be separated and coupled. And a lock piece. In the above publication, a stopper portion is formed on each of the hook and the lock piece so that the hook portion is disengaged, that is, in a state where the sheet is flipped up, the stopper portion is inserted into the through hole of the lower rail. When the slide lock device is erroneously operated, the upper rail is prevented from sliding, and the positional relationship between the seat and the upper rail is maintained. ing.

[0003]

However, in the above-mentioned conventional slide device in which the upper rail slides when the sheet is flipped up by the stopper formed on a part of the hook or the lock piece, the hook or the lock piece has the above function. Therefore, the shape and the amount of movement are limited, so that the engagement allowance of the stopper portion to the lower arm cannot be secured sufficiently, and there is a problem that the movement of the upper rail is not reliably regulated.

Therefore, the present invention solves such a problem, and can prevent the slide lock device from being erroneously operated, or prevent the slide of the upper rail when the slide lock device is erroneously operated. It is an object of the present invention to provide a slide device for a vehicle seat that can be reliably controlled.

[0005]

According to a first aspect of the present invention, a lower rail (21) fixed to a floor (F) of a vehicle and a seat (11) are movably supported. An upper rail (22) slidably engaged with the lower rail (21);
A slide lock means (3) provided on the upper rail (22) for restricting and releasing the slide of the upper rail (22), and a movement of the seat (11) relative to the upper rail (22) provided on the upper rail (22) can be restricted and released. In the sliding device for a vehicle seat provided with the movable lock means (4), when the movable lock means (4) is in the release state, the operation of the slide lock means (3) to the release state is regulated to move. When the lock means (3) is in the restricted state, an interlock means is provided for allowing the slide lock means (4) to operate in the released state.

In the first aspect of the present invention, when the movement locking means is released from the restriction and the seat can be moved with respect to the upper rail, for example, the sheet can be separated from the upper rail, the operation of the slide locking means to the restriction releasing state is restricted. You. Therefore, it is possible to prevent the slide lock unit from being operated by mistake.

For example, when the movement lock means (4) is in the regulation release state, the components (42, 46) of the movement lock means (4) are replaced with the slide lock means (3). This is realized by restricting the operation of the slide lock means (3) to the restriction release state by protruding on the movement locus of (32, 33) and restricting the movement.

In this case, the slide lock means (3)
Engages with the lower rail (21) to engage with the upper rail (2).
A slide lock member (33) movable to a lock position for restricting the slide of 2) and an unlock position for releasing the engagement with the lower rail (21) and allowing the upper rail (22) to slide; The movement lock means (4) engages with the seat (11) to restrict the movement of the seat (11) with respect to the upper rail (22), and releases the engagement with the seat (11) to release the seat (1).
A movable lock member (45) movable to an unlock position allowing movement of the upper rail (22) with respect to 1);
The engagement between the movable lock member (45) and the engagement position for engaging the movable lock member (45) to hold the movable lock member (45) in the locked position is released.
5) an engagement member (46) movable to an engagement release position allowing movement to the unlock position of (5), wherein the engagement member (46) is in a slide lock member when in the engagement release position. The slide lock member (33) may be positioned on the movement locus of (33) to restrict the movement of the slide lock member (33) in the unlock direction.

Alternatively, the slide lock means (3)
Engages with the lower rail (21) to engage with the upper rail (2).
(2) a slide lock member (31) movable to a lock position for restricting the slide and an unlock position for releasing the engagement with the lower rail (21) and allowing the upper rail (22) to slide; Lock member (3
An operation member (32) that engages with 1) and is operable to move the slide lock member (31) between the lock position and the unlock position, and the movement lock means (4) is engaged with the seat (11). A lock position for restricting the movement of the seat (11) with respect to the upper rail (22), and an unlock position for releasing the engagement with the seat (11) and allowing the movement of the seat (11) with respect to the upper rail (22). The movable lock member (41) is engaged with the movable lock member (41), and is engaged with the movable lock member (41) to hold the movable lock member (41) in the locked position. An engagement member (42) movable to an engagement release position allowing the movement lock member (41) to move to the unlock position by releasing the engagement. When in the release position, Idorokku means (3) operating member (32) located on a moving locus of the can be made to restrict the movement in the unlocking direction of the operating member (32).

In the second invention, the lower rail (21) fixed to the floor (F) of the vehicle and the upper rail (22) movably supporting the seat (11) and slidably engaging the lower rail (21). ) And a movement locking means (5) provided on the upper rail (22) and capable of restricting and releasing the movement of the seat (11) with respect to the upper rail (22). ) Is a lock position for engaging the seat (11) and restricting the movement of the seat (11) with respect to the upper rail (22), and releasing the engagement with the seat (11) to prevent the upper rail (22) of the seat (11). A movable lock member (51) movable to an unlock position allowing movement with respect to the movable lock member (51); An engagement position for holding the (51) in the lock position and a disengagement position for releasing the engagement with the movable lock member (51) to allow the movable lock member (51) to move to the unlock position. Movable engagement member (52)
And an engagement position interlocking with the engagement member (52) and engaging with the lower rail (21) when the engagement member (52) is at the disengagement position to restrict sliding of the upper rail (22). An interlock member (55) movable to a disengaged position where the engagement with the lower rail (21) is released and the upper rail (22) is allowed to slide when the mating member (52) is in the engaged position. ing.

According to the second aspect of the present invention, an interlock member interlocking with the engaging member is provided, and the engaging member is in the disengaged position, so that the sheet can be moved with respect to the upper rail, for example, the sheet can be flipped up. In this case, the interlock member is engaged with the lower rail, and the sliding of the upper rail is restricted. By providing the interlock member separately from the moving member and the engaging member, the shape and the moving amount of the interlock member can be set relatively freely, so that the slide lock means is operated by mistake when the seat is flipped up. Also, the movement of the upper rail can be reliably restricted.

The reference numerals in parentheses indicate the correspondence with specific means described in the embodiments described later.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIG. 1 shows a frame structure of a flip-up storage type vehicle seat provided with a slide device of the present invention. In FIG. 1, both ends of a substantially U-shaped seat back frame 12 are connected to the rear end of a seat cushion frame 11 formed in a rectangular frame shape through a known reclining mechanism. Brackets 131 and 132 project from the side end of the seat cushion frame 11 on the inner wall W side of the vehicle, and the tips of the brackets 131 and 132 are rotatably connected to the bracket 14. A slide rail 15 having a front end located above the wheel house W1 and extending in the front-rear direction is provided on an inner wall W of the passenger compartment and supported by a bracket (not shown). The slide rail 15 is slidable on the lower rail 151. It is composed of an engaged upper rail 152. Further, the slide rail 15 is provided with a slide lock means capable of restricting and releasing the slide of the upper rail 152. The bracket 14 is fixed on an upper rail 152. A seat leg 16 is provided at a side end of the seat cushion frame 11 opposite to the inner wall W of the vehicle.
Has a substantially U-shape and protrudes downward, and both base ends thereof are hingedly connected to the frame 11, and can be rotatably stored at a position along the lower surface of the frame 11. Seat leg 1
A substantially U-shaped striker 17, 18 protruding downward is provided at the front and rear position on the lower surface of the distal end of 6.

On the vehicle floor F, the slide rail 1
5, a slide rail 2 extending in parallel with the lower rail 2 fixed to the vehicle floor F is provided.
1 and an upper rail 22 slidably engaged with the lower rail 21. The upper panel 221 of the upper rail 22 has a substantially cross-shaped insertion opening 22 at the front and rear ends.
2,223 are formed, and the seat leg 1
When the strikers 17 and 18 are inserted, the strikers 17 and 18 are locked and fixed in the upper rail 22 by a mechanism described later, and the seat leg 16 is moved to the upper rail 22.
Fixed on top. Thereby, the left and right slide rails 1
The seat in use can be slid along 5 and 2. When the seat is flipped up and stored, the seat back frame 12 is moved backward until it is substantially flush with the seat cushion panel 11, and the U-shaped unlocking lever 23 protruding from the front end of the upper panel 22 is moved forward. Then, the locked state of the strikers 17 and 18 is released, and the seat leg 16 is separated from the upper rail 22. In this state, the entire sheet is rotated and stored at a position along the chamber wall W.

FIG. 2 is a cross-sectional view of an installation portion of the slide rail 2 where the upper rail 22 is provided. The upper rail 22 is provided with a slide lock means 3 at the center, and the slide lock means 3 is a slide lock member 31 formed of a plate.
And an operating arm 32 for operating the same. Further, a first movement lock means 4 is provided at a rear end of the upper rail 22. The first movement lock means 4 includes a movement lock member 41 formed of a plate, an engagement member 42, and a link arm 43. Have. At the front end of the upper rail 22, a second movement lock means 5 is provided, and the second movement lock means 5 is a movement lock member 5 made of a plate.
1, an engagement member 52, a link arm 53, and an interlock member 54. As shown in FIG. 3, the upper rail 22 has two side plates 224, 2 in an upright posture.
The upper ends of the side plates 224 and 225 are bent symmetrically in the horizontal direction to form flange portions, and the upper plate 221 is bonded on these flange portions. The rollers 24 (FIG. 2) mounted on the lower halves of both ends of the upper rail 22 are respectively shown in FIG.
As shown in the figure, the shafts 226 extending horizontally through the side plates 224 and 225 are provided at both ends, respectively, and are located in the inner space of the lower rail 21 having a substantially U-shaped cross section that opens upward. Rolling on the bottom wall of the lower rail 21 causes the upper rail 22 to move along the lower rail 21.

FIG. 4 is a horizontal sectional view of the upper rail 22 on which the slide lock means 3 and the first movement lock means 4 are installed, and is a sectional view taken along the line IV-IV in FIG. Less than,
The structures of the slide lock means 3 and the first movement lock means 4 will be described with reference to FIGS. The slide lock member 31 constituting the slide lock means 3 is a plate body, and the locking protrusions 31 protruding downward on both sides in the width direction at the lower end.
1 are formed (FIG. 2), these locking projections 311 enter each of a pair of engagement holes 211 provided in the lower rail 21, and the sliding of the upper rail 22 is restricted. In addition, a plurality of pairs of the engagement holes 211 are juxtaposed at appropriate positions in the rail longitudinal direction with an interval in the longitudinal direction.

The rear edge of the slide lock member 31 has a U-shaped notch at the middle part in the vertical direction to form an engagement recess 312 extending substantially horizontally. In the portion where the slide lock member 31 is installed, the side plates 224 and 225 are positioned substantially parallel to each other with an interval (FIG. 4), and the slide lock member 3 is
It is located between 5 and guided vertically.

As shown in FIG. 4, the operation lever 32 is disposed between the left and right side panels 224 and 225. An intermediate portion of the operation lever 32 extending in the longitudinal direction of the rail allows the side panels 224 and 225 to penetrate horizontally. The shaft 226 is rotatably mounted. The distal end of the operation lever 32 extends toward the slide lock member 31, and the lever distal end portion 321 (FIG. 2) whose upper and lower side surfaces are bulged in an arc shape enters the engagement recess 312 of the slide lock member 31. The engaging recess 312 is in contact with the inner circumferential surface of the recess at substantially the center in the thickness direction (FIG. 4).

A spring engaging portion 322 (FIG. 2) projecting downward is formed on the lower surface of the intermediate portion of the operation lever 32. The spring engaging portion 322 is bent to the side, and
24 extends through the opening (not shown) provided in the lower half of the lower rail 24 to the inner space of the lower rail 21. A coil spring is provided between the tip of the spring locking portion 322 and the side panel 224, and the operating lever 32 is urged to rotate counterclockwise in FIG. Is held down at a lock position for restricting the slide of the upper rail 22. The other end of the operation lever 32 is bent toward the near side in FIG.
It is 3.

To cancel the slide lock state,
The receiving portion 323 of the operation lever 32 is pushed down by operating a slide lock releasing means (not shown) provided on the seat side. Then, the slide lock member 31 rises,
The locking projection 311 escapes from the engagement hole 211 to reach an unlock position where the engagement state with the lower rail 21 is released, and the upper rail 22 can slide. In addition,
The slide lock releasing means simultaneously operates the slide rail 1
The slide lock state of the slide lock means 5 is also released. Further, the slide lock releasing means is a seat leg 16.
Is separated from the operation lever 32 when it is separated from the upper rail 22.

The movable lock member 41 constituting the first movable lock means 4 has a shaft 411 (FIG. 2) at the center of the lower end thereof, and the side plates 224, 225 of the upper rail 22.
Between them (FIG. 4), they are rotatably connected along these side plates 224, 225. A concave portion 412 that opens rearward is formed in an upper portion of the movable lock member 41, into which a lower end of the striker 18 provided at a rear end position of the lower surface of the seat leg 16 (FIG. 1) enters, and a seat 412 is formed. The rear end of the leg 16 is fixed on the upper rail 22.

An engagement projection 413 is formed on the movable lock member 41, and the engagement projection 413 engages with an engagement member 42 provided adjacent to the movement lock member 41, which will be described later. The rotation of the movement lock member 41 in the direction of releasing the engagement with the striker 18 is blocked and locked. A link arm 43 is connected to the movement lock member 41. The link arm 43 has a base end rotatably coupled to a shaft member 421 located forward of the shaft body 411, and a distal end thereof is connected to the lower end plate surface of the movement lock member 41 and the pin body 43.
When the striker 18 is inserted into the insertion slot 223, the striker 18 is pushed down by the striker 18, and the movable lock member 41 is rotated in a direction in which the striker 18 engages with the striker 18. Link arm 4
A contact portion 432 is formed on the upper surface of the distal end of 3, and the lower end of the striker 18 contacts the contact portion 432 and pushes it down. Note that one end of a coil spring 44 (FIG. 4) is locked at the tip of the link arm 43 so that the link arm 4
3 is urged upward, and the lower end of the striker 18 is sandwiched between the movable lock member 41 and the movable lock member 41 without rattling.

The lower end of the engaging member 42 is rotatably supported between the side plates 224 and 225 along a shaft member 421 provided between the side plates 224 and 225. The member is urged to rotate in the direction of engagement with the movement lock member 41. In addition, an engagement recess 422 that engages with the engagement protrusion 413 of the movement lock member 41 is formed at an upper portion of the engagement member 42. An operation rod 231 is provided at the upper end of the engagement member 42.
The front end of the operation rod 231 is connected to the lock release lever 23 (FIG. 1).

FIG. 5 is a horizontal sectional view of the upper rail 22 on which the second movement lock means 5 is installed, and is a sectional view taken along the line VV of FIG. Hereinafter, based on FIG. 2 and FIG.
The structure of the movement lock means 5 will be described. The movement lock member 51 and the engagement member 5 that constitute the second movement lock means 5
2. The shape and structure of the link arm 53 are the same as those of the first movement lock means 4 already described, and the seat leg 1 is provided in the recess 512 (FIG. 2) of the movement lock member 51.
6 (FIG. 1), the lower end of the striker 17 (FIG. 1) provided at the front end position of the lower surface enters, and the front end of the seat leg 16 is fixed on the upper rail 22. The engaging member 52 is rotationally urged by a spring member in a direction in which the engaging member 52 is engaged with the movement lock member 51, and the upper end of the engaging member 52 is connected to the rear end of the operation rod 231 reaching the lock release lever 23. I have. An interlock member 54 is provided between the side plates 224 and 225 at a front position (left side in FIGS. 2 and 5) adjacent to the engagement member 52. Interlock member 5
Reference numeral 4 denotes a plate, which is rotatably supported at an intermediate position in the vertical direction by a shaft member 541, and has a contact portion 542 extending upward from the eccentric position and a locking portion 543 extending downward. The upper end of the contact portion 542 contacts the side surface of the top of the engagement member 52, while the lower end of the engaging portion 543 reaches near the lower edge of the upper rail 22. In addition, the interlock member 54 is a coil spring 5 disposed around the shaft member 541.
44 (FIG. 5), the upper end of the contact portion 542 is
2 toward the clockwise direction in FIG.

When the sheet is flipped up and stored, the lock release lever 23 is pulled forward, and the front and rear engaging members 42,
52 is rotated in the forward tilt direction so that the engagement recesses 422,
522 and the engagement convex portions 413 of the movable lock members 41 and 51.
513 is disengaged. In this state, when the inner edge of the seat cushion is lifted, the movable lock members 41 and 51 are tilted and rotated in accordance with the upward movement of the strikers 17 and 18 (FIGS. 6 and 7). Recess 4
The strikers 17, 18 are extracted from the 12, 12, respectively, and the sheets can be flipped up and stored as described above.

At this time, as shown in FIG.
As a result, the receiving portion 32 of the operation lever 32
3, the other end 3 of the operation arm 32
24, the lower surface of the operating lever 3
2 clockwise rotation is regulated. As a result, the slide lock member 31 cannot be raised, and the locking projection 3
The state in which 11 has entered the engagement hole 211 of the lower rail 21 is maintained, and the slide of the upper rail 22 remains restricted. Further, as shown in FIG. 7, when the engaging member 52 is tilted forward, the interlock member 54 that comes into contact with the engaging member 52 is rotated counterclockwise around the shaft member 541, and the lower end of the locking portion 543 is lowered. The lower rail 21 enters the engaging hole 211 of the lower rail 21 and is
Slides are regulated.

When the seat is to be used again, the seat positioned along the side wall of the cabin is rotated toward the cabin by the hinge mechanism of the bracket 14, and the front and rear strikers 1 are moved.
7 and 18 enter the upper rail 22 via the insertion ports 222 and 223, respectively. The strikers 17, 18 abut against the contact portions 432, 532 of the link arms 43, 53 and push it down, so that the movement lock members 41,
51 is rotated to the upright posture (FIG. 2) and the recess 41 is formed.
The lower ends of the strikers 17 and 18 enter and engage with the inside 2 and 512. At this time, the engagement protrusions 4 of the movable lock members 41 and 51 are used.
13, 513 are engaging recesses 422 of the engaging members 42, 52.
522 to enter the engaged state. Each engagement member 42,5
2 is returned from the forward tilted state (FIGS. 6 and 7) to the upright state (FIG. 2). The locking member 31 is provided with the locking projection
1 can be raised to an unlocked position to escape. In addition, the interlock member 54 is rotated clockwise in accordance with the upright rotation of the engaging member 52, and the lower end of the locking portion 543 escapes from the engaging hole 211 (FIG. 2).
This allows the upper rail 2 to slide.

As described above, in the present embodiment, when the seat and the upper rail 22 are separated from each other, the slide lock member 3 for positioning the upper rail 2 at a predetermined position.
1 is controlled so that the operation of unlocking the operation lever 32 for operating the seat 1 is restricted.
The operation lever 32 can be prevented from being erroneously operated in a state where the control lever 32 is separated from the control lever 32. Thus, it is possible to avoid a situation in which the upper rail 22 slides alone and the position must be adjusted when the seat and the upper rail 22 are next connected. Further, in a state where the seat and the upper rail 22 are separated, the interlock member 54 is engaged with the lower rail 21 to regulate the sliding of the upper rail 22, so that the engagement of the slide lock member 31 with the lower rail 21 should be avoided. Even if it is released, the slide of the upper rail 22 can be restricted. And the interlock member 54 is the movable lock member 5.
1 and the engagement member 52, the shape and the amount of movement can be set relatively freely, so that an allowance for engagement with the engagement hole 211 can be sufficiently ensured. The reliability is guaranteed and the engagement hole 2
The play with 11 can also be made sufficiently small. In addition, only one of the first movement lock means 4 and the second movement lock means 5 may be provided.

(Second Embodiment) In this embodiment, as shown in FIG. 8, in the structure described in the first embodiment, the top of the movable lock member 41 constituting the first movable lock means 4 is engaged. A spring body 45 is provided between the top of the member 42. With such a structure, the lock release lever 23 (FIG. 1)
When the operating rod 231 is pulled forward by the
Is rotated in the forward tilt direction, and the engagement between the engagement recess 422 and the engagement protrusion 413 of the movable lock member 41 is released. At this time, the spring body 45 is deformed with the forward inclination of the engagement member 41,
The top of the movable lock member 41 is pulled in the direction of the engagement member 42 by the original shape return spring force. For this reason, in response to the upward movement of the striker 18, the movable lock member 41 is reliably tilted and rotated as shown in FIG.
The striker 18 is extracted from the inside of the first recess 412.
According to the present embodiment, the recess 412 of the movement lock member 41
Even if there is a frictional force between the inner peripheral surface and the striker 18, the striker 18 can be reliably pulled out. Note that the spring body of the present embodiment can also be provided between the moving lock member 51 and the engaging member 52 that constitute the second moving lock means 5 (FIG. 7).

(Third Embodiment) FIG. 10 shows a third embodiment of the present invention.
In the present embodiment, an insertion slot 223 of the upper panel 221 located immediately above the first movement locking means 4 is shown.
Are provided with guide projections 227 and 228. Other structures are the same as in the first embodiment. The guide projections 227, 228
11, the two side panels 22 which are vertically suspended, as shown in FIG.
The upper panel 221 is formed on the upper edges of the upper and lower panels 4, 225 at intervals in the longitudinal direction. When the upper panel 221 is put on the upper panel 221 from above, as shown in FIG.
The guide projections 227 and 228 protrude inside. The opposing guide projections 227, 228 are formed on an inclined surface 22a (FIG. 10) in which each opposing surface is gradually opened upward and inclined. By providing such guide projections 227 and 228, the configuration shown in FIG.
Even if the position of the lower end of the striker 18 inserted into the insertion opening 223 is displaced to some extent in the rail longitudinal direction as shown by the chain line, the striker 18 can be moved by the first movement locking means 4 by the inclined surfaces 22a of the guide projections 227 and 228. Is reliably guided on the receiving portion 432 of the link arm 43 constituting the above.
It should be noted that such a guide projection can also be provided in the insertion opening 222 (FIG. 1) where the second movement locking means 5 is located.

(Fourth Embodiment) FIG. 13 shows another example of the interlock member constituting the second movement lock means 5 described in the first embodiment. Interlock member 5
Reference numeral 5 denotes a plate formed in a substantially L-shape.
4, 225 (FIG. 3), and a pin 551 protruding at an intermediate portion thereof is connected to the side panel 22.
4,225 is inserted into a long hole 229 formed obliquely upward. The upper end 552 of the interlock member 55 is in contact with the front side surface of the engagement member 52 in the forwardly inclined posture.
The lower end 553 enters the engagement hole 211 of the lower rail 21, thereby restricting the slide of the upper rail 22. The interlock member 55 is urged upward by a spring member (not shown).

When the striker 17 enters into and engages with the recess 512 of the movable lock member 51, the movable lock member 51 rotates to the upright posture, and accordingly, the engaging member 52 moves as shown by a chain line in FIG. It turns to the standing posture. As a result, the pin 551 of the interlock member 55 moves upward along the elongated hole 229 and rises as a whole, and the lower end 552 escapes from the engagement hole 211 as shown by a chain line in the figure, and the The slide becomes possible.

(Fifth Embodiment) FIG. 14 shows another example of the slide lock means 3 and the first movement lock means 4 described in the first embodiment. In FIG. 14, the slide lock member 33 constituting the slide lock means 3 has the same basic structure as that described in the first embodiment, except that an engagement recess 332 is formed toward the front. Operation lever 34 provided forward of slide lock member 33
Are engaged with each other. In such a slide lock member 33, a contact surface 333 is formed stepwise at an intermediate position between the upper and lower rear surfaces. The first movement lock means 4 includes a movement lock member 45 and an engagement member 46. The center of the lower end of the movement lock member 45 is formed by a shaft 451 on the side plates 224 and 22 of the upper rail 22.
5 (FIG. 3) are rotatably connected along these side plates 224, 225. Further, a recess 452 is formed in the upper part of the movement lock member 45, into which the lower end of the striker 18 enters, and the rear end of the seat leg 16 (FIG. 1) is fixed on the upper rail 22. .
An engagement recess 453 is formed in the movement lock member 45, and the engagement recess 453 engages with an engagement protrusion 461 of an engagement member 46 provided adjacent to the movement lock member 45. Thus, the rotation of the movable lock member 45 in the direction of releasing the engagement with the striker 18 is prevented.

The lower end of the engaging member 46 is rotatably supported between the side plates 224 and 225 by a shaft member 462 provided between the side plates 224 and 225. Thus, the rotation lock is urged in the direction of engagement with the movement lock member 45. A part of the upper end of the engagement member 46 extends obliquely upward to form a contact projection 463. The rear end of the operation rod 231 extending from the lock release lever 23 (FIG. 1) is connected to the plate surface of the engagement member 46.

When the sheet is flipped up and stored, when the lock release lever 23 is pulled forward, the engaging member 46 is rotated from the backward inclined position to the upright position shown by the chain line in FIG. 461 and engagement recess 45 between movable lock member 45
3 is disengaged. In this state, when the inner edge of the seat cushion is lifted, the movement lock member 45 is tilted and rotated in accordance with the upward movement of the striker 18 (chain line in FIG. 14), and the striker 18 is moved from the recess 452 of the movement lock member 45. The sheet is pulled out and the sheet can be flipped up and stored as described above.

At this time, the abutting projection 463 of the upstanding engaging member 46 abuts against the abutting surface 333 of the slide lock member 33 as shown by a chain line in FIG. As a result, even if the receiving portion 342 of the operation lever 34 is pressed down, the slide lock member 33 cannot be raised, and the locking projection 331 is moved into the engagement hole 2 of the lower rail 21.
11 is maintained, and the sliding of the upper rail 22 is regulated.

When the seat is used again, the seat positioned along the side wall of the cabin is rotated to the inside of the cabin so that the lower end of the striker 18 enters the upper rail 22 through the insertion port 223. The striker 18 comes into contact with the surface of the recess 452 of the movable lock member 45 and the movable lock member 45
Is rotated to the standing posture shown by the solid line in FIG.
2 and engages with it. At this time, the engagement protrusion 461 of the engagement member 46 is engaged with the engagement recess 453 of the movement lock member 45.
Into the engaged state. Since the engagement member 46 returns from the upright state to the rearwardly inclined state, the contact protrusion 463 and the contact surface 333 are formed.
Is released, and the receiving portion 342 of the operation arm 34 is released.
Is pressed down to rotate the operation lever 34 in the counterclockwise direction so that the slide lock member 33 is
31 can be raised to an unlocked position where it escapes from the engagement hole 211. This allows the upper rail 22 to slide. The contact protrusion 463 of the engagement member 46 does not necessarily need to be in contact with the contact surface 333 of the slide lock member 33 when the engagement member 46 stands up. 33
The slide lock member 33 may be configured to abut on the slide lock 3 to prevent the slide lock member 33 from rising further.

The present invention can be applied to a device in which the entire sheet can be detached from the slide device or a device in which the sheet can be flipped forward with respect to the slide device.

[0039]

As described above, according to the slide device for a vehicle seat of the present invention, it is possible to prevent the slide lock device from being erroneously operated or to operate the slide lock device erroneously. The sliding of the upper rail at the time can be reliably restricted.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a frame structure of a flip-up storage type vehicle seat having a slide device according to a first embodiment of the present invention.

FIG. 2 is a side view of an upper rail installation portion of the slide rail.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2;

FIG. 5 is a sectional view taken along line VV of FIG. 2;

FIG. 6 is a vertical sectional view of a slide rail portion on which a first movement lock unit and a slide lock unit are installed.

FIG. 7 is a vertical sectional view of a slide rail portion on which a second movement lock unit is installed.

FIG. 8 is a vertical cross-sectional view of a slide rail portion provided with a first movement lock unit according to a second embodiment of the present invention.

FIG. 9 is a vertical sectional view of a slide rail portion on which a first movement lock unit is installed.

FIG. 10 is a vertical cross-sectional view of a slide rail portion provided with a first movement lock unit according to a third embodiment of the present invention.

FIG. 11 is an exploded perspective view of a main part of a side plate and an upper plate of an upper rail.

FIG. 12 is a perspective view of a main part of an upper rail.

FIG. 13 is a vertical cross-sectional view of a slide rail portion provided with a second movement lock unit according to a fourth embodiment of the present invention.

FIG. 14 is a vertical cross-sectional view of a slide rail portion provided with a second movement lock unit according to a fifth embodiment of the present invention.

[Explanation of symbols]

11: seat cushion frame, 21: lower rail,
22 ... upper rail, 3 ... slide lock means, 31 ...
Slide lock member 32 operating lever 33 slide lock member 4 movement lock means 41 movement lock member 42 engagement member 45 movement lock member 46
Engaging member, 51: moving lock member, 52: engaging member, 5
5: Interlock member, F: Vehicle floor.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takahiro Kanma 100 Kanayama, Ichiriyama-cho, Kariya-shi, Aichi F-term in TOYOTA Auto Body Co., Ltd. (Reference) 3B087 BA02 BB03 BC06 BC08 CA14 DA02 DA10

Claims (5)

[Claims] A lower rail fixed to a floor of a vehicle;
An upper rail movably supporting the seat and slidably engaging the lower rail; a slide lock means provided on the upper rail for restricting and releasing the slide of the upper rail; and a movement of the seat relative to the upper rail provided on the upper rail. And a movement lock means capable of restricting and releasing the restriction. When the movement lock means is in the restriction release state, the operation of the slide lock means to the restriction release state is restricted, and the movement is restricted. A slide device for a vehicle seat, comprising: an interlock means for permitting operation of the slide lock means to a release state when the lock means is in a restricted state. 2. The sliding device for a vehicle seat according to claim 1, wherein said interlock means is configured such that, when said movement lock means is in a regulation release state, a component of said movement lock means is said slide lock means. A slide device for a vehicle seat, which protrudes on a movement locus of a component and restricts the movement of the component so as to restrict the operation of a slide lock unit to a release state. 3. A sliding device for a vehicle seat according to claim 2, wherein said slide lock means releases a lock position for engaging said lower rail and restricting slide of said upper rail, and engagement with said lower rail. And a slide lock member movable to an unlock position allowing sliding of the upper rail, and the movement lock means includes:
A movable lock member that is movable to a lock position that engages with the sheet and regulates movement of the sheet with respect to the upper rail, and an unlock position that releases engagement of the sheet and allows movement of the sheet with respect to the upper rail; An engagement position for engaging the lock member and holding the movable lock member at the lock position; and an engagement release position for releasing engagement with the movable lock member and allowing the movable lock member to move to the unlock position. And a movable engagement member. When the engagement member is at the disengagement position, the engagement member is located on the movement locus of the slide lock member, and moves the slide lock member in the unlock direction. A sliding device for vehicle seats to be regulated. 4. A sliding device for a vehicle seat according to claim 2, wherein said slide lock means releases a lock position for engaging said lower rail and restricting slide of said upper rail, and engagement with said lower rail. A slide lock member movable to an unlock position allowing the upper rail to slide, and an operation member engaged with the slide lock member and operable to move the slide lock member to the lock position and the unlock position. Wherein the movement lock means is movable to a lock position for engaging the sheet and restricting movement of the sheet with respect to the upper rail, and an unlock position for releasing the engagement with the sheet and allowing movement of the sheet with respect to the upper rail. Moving lock member,
An engagement position for engaging the movement lock member and holding the movement lock member at the lock position; and an engagement release for releasing engagement with the movement lock member and allowing movement of the movement lock member to the unlock position. And an engagement member that is movable between the slide lock means and the operation member when the engagement member is at the disengagement position. Slide device for vehicle seats that regulates the movement of vehicles. 5. A lower rail fixed to a floor of a vehicle,
A vehicle seat slide device comprising: an upper rail movably supporting a seat and slidably engaging with the lower rail; and a movement lock means provided on the upper rail and capable of regulating and releasing the movement of the seat relative to the upper rail. The movement lock means can be moved to a lock position for engaging the sheet and restricting movement of the sheet with respect to the upper rail, and an unlock position for releasing engagement with the sheet and allowing movement of the sheet with respect to the upper rail. A movement lock member, an engagement position for engaging the movement lock member and holding the movement lock member in the lock position, and releasing the engagement with the movement lock member to move the movement lock member to the unlock position. An engagement member movable to an allowable disengagement position; An engagement position for engaging the lower rail when in the release position and restricting the slide of the upper rail, and an engagement release position for releasing the engagement with the lower rail and allowing the upper rail to slide when the engagement member is in the engagement position. A sliding device for a vehicle seat, comprising: a movable interlock member.